Mucosal Snare Resection (MSR) in Non-Submucosal Injection Endoscopic Submucosal Excavation (NSI-ESE) for submucosal tumor may not be the preferable choice: A retrospective study
Fig 2
The procedure of mucosal snare resection endoscopic submucosal excavation (MSR-ESE).
(A) An SMT is observed. (B) The tumor originates from the muscularis propria layer on EUS. (C) Without submucosal lifting, The superficial mucosa over the lesion was partly resected with a snare. (D) The margins were extended and the tumor fully exposed using a Dual Knife. (E-F) En bloc resection of the lesion was achieved, and the wound was closed with hemostatic clips.